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胃癌组织中Ki-67、p63和p16的表达变化及意义

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摘要 目的观察胃癌组织中Ki-67、p63和p16的表达变化,并探讨其意义。方法收集58例胃癌患者手术切除标本,另取胃镜检查组织学相对正常的胃黏膜组织标本20份作为正常对照。采用免疫组化法检测胃癌组织及正常胃黏膜组织中Ki-67、p63和p16表达。结果 Ki-67、p63和p16在正常胃黏膜组织中的阳性表达率分别为25%(5/20)、15%(3/20)、60%(12/20),在胃癌组织中的阳性表达率分别为76%(44/58)、78%(45/58)、40%(34/58)。胃癌组织中Ki-67和p63阳性表达率显著高于、p16阳性表达率显著低于正常胃黏膜组织(P均<0.05)。胃癌组织中Ki-67蛋白阳性表达率与浸润深度、分化程度、淋巴结转移有关(P均<0.05)。p63阳性表达率与胃癌的浸润深度与分化程度有关(P均<0.05),与淋巴结转移无明显相关性。p16阳性表达率与淋巴结转移有关(P<0.05),与浸润深度、分化程度无明显关系。在胃癌组织中,Ki-67表达与p63表达呈正相关(r=0.560,P=0.044);Ki-67表达与p16表达无相关性(r=0.472,P=0.111)。结论胃癌组织中Ki-67、p63和p16表达明显升高,三者表达与胃癌的浸润深度、分化程度、淋巴结转移有关;Ki-67、、p63、p16可作为胃癌诊断的选择性标记物。
出处 《山东医药》 CAS 北大核心 2015年第33期44-45,46,共3页 Shandong Medical Journal
基金 湖北省科技厅基金项目(2014CFB211) 湖北科技学院科研项目(ZX13065 20130927027)
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